Facebook founder Mark Zuckerberg made an official announcement today of a significant milestone in the history of the social network. According to Zuckerberg, as of this morning, there are over 1 billion people using Facebook actively each month. Facebook also released some key metrics to go along with its 1 billion monthly active user metric.

Facebook reached 1 billion monthly active users on September 14 at 12:45 PM Pacific time. Facebook says that since the "Like" feature launched in February of 2009, the network has seen over 1.13 trillion likes. The social network has also facilitated 140.3 billion friend connections and has had 219 million photos uploaded.

Facebook says that the photo metric does not include deleted photos. If the number of photos that were deleted is included in the total, it goes to 265 billion.

Facebook data also shows that the average age of a Facebook user is about 22.

The top five countries for users when the social network hit the 1 billion-user mark were Brazil, India, Indonesia, Mexico, and the United States.